Once you figure it out (Trevor's suggestion is good) make one of these. You'll never need to guess again.
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| Determining Binding Router Bearing Sizes http://luthiersforum.com/forum/viewtopic.php?f=10101&t=38403 |
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| Author: | sdsollod [ Fri Nov 30, 2012 5:35 pm ] |
| Post subject: | Determining Binding Router Bearing Sizes |
I have several of the stew mac binding router bearings. I have 4 in a bag with the sizes written on the bag. From the relative size I can figure out what they are... But, I have 2 in another bag that I failed to write the sizes on. Is there a way to determine the size of the bearing (relative to the corresponding size of the binding) without cutting a test on scrap first? Thanks, Steve |
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| Author: | Trevor Gore [ Fri Nov 30, 2012 6:04 pm ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
The rebate depth of cut is half the difference in the diameters of the bearing and cutter. So if the bearing is 20mm in diameter and the cutter is 25mm diameter the rebate it will cut is 2.5mm deep. |
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| Author: | Rod True [ Fri Nov 30, 2012 7:40 pm ] |
| Post subject: | Determining Binding Router Bearing Sizes |
Once you figure it out (Trevor's suggestion is good) make one of these. You'll never need to guess again.
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| Author: | Goodin [ Sat Dec 01, 2012 9:35 am ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
sdsollod wrote: I have several of the stew mac binding router bearings. I have 4 in a bag with the sizes written on the bag. From the relative size I can figure out what they are... But, I have 2 in another bag that I failed to write the sizes on. Is there a way to determine the size of the bearing (relative to the corresponding size of the binding) without cutting a test on scrap first? Thanks, Steve Stew Mac lists this information on their website per bearing. Just use calipers to measure the diameter of the bearing and look it up. |
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| Author: | Dave Stewart [ Sat Dec 01, 2012 9:57 am ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
I strongly suggest taking 5 minutes to make up a sample stick on the router table containing a couple of inches of the actual rebate produced with each bearing. This makes it easy to test fit your actual binding/purf combo to the right bearing. And store them on a bolt or as Rod shows, rather than rattlin' around in a bag. |
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| Author: | grumpy [ Sat Dec 01, 2012 10:20 am ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
Another vote for taking 2 minutes and making a storage rack for them. Mine is a simple 1" stick with finishing nails holding the bearings.... When in doubt, always make a test cut. Really, how much time does that take to make a test cut and check it against your binding/purfling(s) versus the time it would take to "recover" from having used the wrong bearing? I -still- make a quick test-cut, every-single-time, before the router goes near the instrument. |
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| Author: | sdsollod [ Sat Dec 01, 2012 11:09 am ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
I have every intension to make test cuts before cutting my binding channel. I have just been lax about making up a rack of some sort to store the bearings. Thanks for the info guys. I knew I could count on you to set me in the right direction... ![[:Y:]](./images/smilies/smiley20.gif "Thumbs Up")
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| Author: | sdsollod [ Sat Dec 01, 2012 11:09 am ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
I have every intension to make test cuts before cutting my binding channel. I have just been lax about making up a rack of some sort to store the bearings. Thanks for the info guys. I knew I could count on you to set me in the right direction...
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| Author: | DannyV [ Sat Dec 01, 2012 2:20 pm ] |
| Post subject: | Re: Determining Binding Router Bearing Sizes |
Rod True wrote: Once you figure it out (Trevor's suggestion is good) make one of these. You'll never need to guess again. Where did that set come from Rod? I think it's time for an upgrade. My 7 or 8 bearings are making my life more difficult than it needs to be. Thanks, Danny |
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| Author: | Rod True [ Sat Dec 01, 2012 5:39 pm ] |
| Post subject: | Determining Binding Router Bearing Sizes |
DannyV wrote: Rod True wrote: Once you figure it out (Trevor's suggestion is good) make one of these. You'll never need to guess again. Where did that set come from Rod? I think it's time for an upgrade. My 7 or 8 bearings are making my life more difficult than it needs to be. Thanks, Danny That's the new Stew Mac full set. |
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